arrow.direcnode.com has no CNAME records.
Question and response
Question
dig arrow.direcnode.com. NS
Answer
The response has no answer records.
Authority
direcnode.com. 1798 SOA jean.ns.cloudflare.com. dns.cloudflare.com. 2396587862 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0